Does anyone know why sometimes when you drag a Z80 image onto Foon it says its not a valid 48k .Z80 image even though it is? I want to be able to play the spectrum version of Spy Hunter on my GBA but it won't let me. I have found a public domain Foon with lots of roms including Spy Hunter which works, but that uses a lot of space, whereas Spy Hunter on it's own would be tiny. Any help would be much appreciated, thanks!